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English Journal

Systematic comparison of non-invasive measures for the assessment of atrial fibrillation complexity: a step forward towards standardization of atrial fibrillation electrogram analysis.

Bonizzi P1, Zeemering S2, Karel JM3, Di Marco LY4, Uldry L5, Van Zaen J5, Vesin JM5, Schotten U2.
Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology.Europace.2015 Feb;17(2):318-25. doi: 10.1093/europace/euu202. Epub 2014 Aug 13.
AIMS: To present a comparison of electrocardiogram-based non-invasive measures of atrial fibrillation (AF) substrate complexity computed on invasive animal recordings to discriminate between short-term and long-term AF. The final objective is the selection of an optimal sub-set of measures for AF co
PMID 25121730

Location of epicardial adipose tissue affects the efficacy of a combined dominant frequency and complex fractionated atrial electrogram ablation of atrial fibrillation.

Nakatani Y1, Kumagai K2, Minami K1, Nakano M1, Inoue H3, Oshima S1.
Heart rhythm : the official journal of the Heart Rhythm Society.Heart Rhythm.2015 Feb;12(2):257-65. doi: 10.1016/j.hrthm.2014.10.020. Epub 2014 Oct 22.
BACKGROUND: Epicardial adipose tissue (EAT) is located adjacent to high dominant frequency (DF) sites.OBJECTIVE: This study aimed to clarify the relationship between the EAT location and efficacy of a combined high DF site and continuous complex fractionated activation electrogram (CFAE) site ablati
PMID 25446157

Fractionation of electrograms is caused by colocalized conduction block and connexin disorganization in the absence of fibrosis as AF becomes persistent in the goat model.

Kirubakaran S1, Chowdhury RA2, Hall MC3, Patel PM2, Garratt CJ3, Peters NS2.
Heart rhythm : the official journal of the Heart Rhythm Society.Heart Rhythm.2015 Feb;12(2):397-408. doi: 10.1016/j.hrthm.2014.10.027. Epub 2014 Oct 27.
BACKGROUND: Electrogram fractionation and atrial fibrosis are both thought to be pathophysiological hallmarks of evolving persistence of atrial fibrillation (AF), but recent studies in humans have shown that they do not colocalize. The interrelationship and relative roles of fractionation and fibrot
PMID 25444850

A New Method of a Pulmonary Vein Map to Identify a Conduction Gap on the Pulmonary Vein Antrum Ablation Line

MIYAMOTO Koji,TSUCHIYA Takeshi,YAMAGUCHI Takanori,NAGAMOTO Yasutsugu,ANDO Shin-ichi,SADAMATSU Kenji,TANIOKA Yoshito,TAKAHASHI Naohiko
Circulation journal : official journal of the Japanese Circulation Society 75(10), 2363-2371, 2011-09-25
… The conduction gaps were identified at 1.4±0.7 sites per PV antrum, with an electrogram amplitude of 0.8±0.7mV. …
NAID 10029459343

Clarifying the Arrhythmogenic Substrate for Brugada Syndrome : Electroanatomic Mapping Study of the Right Ventricle

Kofune Masayoshi,Watanabe Ichiro,Ohkubo Kimie,Ashino Sonoko,Okumura Yasuo,Nagashima Koichi,Mano Hiroaki,Nakai Toshiko,Kasamaki Yuji,Hirayama Atsushi
International Heart Journal 52(5), 290-294, 2011
… 0.01) and the bipolar electrogram duration was greater (81.6 ± 7.8 ms versus 53.4 ± 5.6 ms, P < … the bipolar electrogram duration was greater in the septal portion and free wall of the RVOT.Our data suggest that regional endocardial conduction slowing based on structural abnormalities exists at the RVOT in Brugada syndrome. …
NAID 130001088311